lib/libcurses/underscore.c

1.2  blymn /*	$NetBSD: underscore.c,v 1.3 2000/04/12 21:44:42 jdc Exp $	*/
1.1    mrg
1.3    jdc /*-
1.3    jdc  * Copyright (c) 1999 The NetBSD Foundation, Inc.
1.1    mrg  * All rights reserved.
1.1    mrg  *
1.3    jdc  * This code is derived from software contributed to The NetBSD Foundation
1.3    jdc  * by Julian Coleman.
1.3    jdc  *
1.1    mrg  * Redistribution and use in source and binary forms, with or without
1.1    mrg  * modification, are permitted provided that the following conditions
1.1    mrg  * are met:
1.1    mrg  * 1. Redistributions of source code must retain the above copyright
1.1    mrg  *    notice, this list of conditions and the following disclaimer.
1.3    jdc  * 2. Redistributions in binary form must reproduce the above copyright
1.3    jdc  *    notice, this list of conditions and the following disclaimer in the
1.3    jdc  *    documentation and/or other materials provided with the distribution.
1.3    jdc  * 3. All advertising materials mentioning features or use of this software
1.3    jdc  *    must display the following acknowledgement:
1.3    jdc  *        This product includes software developed by the NetBSD
1.3    jdc  *        Foundation, Inc. and its contributors.
1.3    jdc  * 4. Neither the name of The NetBSD Foundation nor the names of its
1.3    jdc  *    contributors may be used to endorse or promote products derived
1.3    jdc  *    from this software without specific prior written permission.
1.1    mrg  *
1.3    jdc  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.3    jdc  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.3    jdc  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.3    jdc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.3    jdc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.3    jdc  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.3    jdc  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.3    jdc  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.3    jdc  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.3    jdc  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.3    jdc  * POSSIBILITY OF SUCH DAMAGE.
1.1    mrg  */
1.1    mrg
1.1    mrg #include "curses.h"
1.2  blymn #include "curses_private.h"
1.1    mrg
1.1    mrg /*
1.1    mrg  * wunderscore
1.1    mrg  *	Enter underscore mode.
1.1    mrg  */
1.1    mrg int
1.1    mrg wunderscore(win)
1.1    mrg 	WINDOW *win;
1.1    mrg {
1.3    jdc 	/* If can underscore, set the screen underscore bit. */
1.1    mrg 	if ((US != NULL && UE != NULL) || UC != NULL) {
1.1    mrg #ifdef DEBUG
1.1    mrg 		__CTRACE("wunderscore\n");
1.1    mrg #endif
1.2  blymn 		win->wattr |= __UNDERSCORE;
1.3    jdc 		if ((win->wattr & __COLOR) && (__nca & __UNDERSCORE)) {
1.3    jdc 			win->wattr &= ~__COLOR;
1.3    jdc 		}
1.1    mrg 	}
1.1    mrg 	return (1);
1.1    mrg }
1.1    mrg
1.1    mrg /*
1.1    mrg  * wunderend --
1.1    mrg  *	Exit underscore mode.
1.1    mrg  */
1.1    mrg int
1.1    mrg wunderend(win)
1.1    mrg 	WINDOW *win;
1.1    mrg {
1.1    mrg 	if (UE != NULL) {
1.1    mrg #ifdef DEBUG
1.1    mrg 		__CTRACE("wunderuend\n");
1.1    mrg #endif
1.2  blymn 		win->wattr &= ~__UNDERSCORE;
1.1    mrg 	}
1.1    mrg         return 1;
1.1    mrg }